Delta MS20 is a premium-grade waterproofing membrane designed to provide a high-capacity drainage void for basement and below-ground floors. With its robust 20mm stud profile, Delta MS20 is engineered to manage significant water ingress, making it an essential component in Type C waterproofing systems for new builds, refurbishments, and civil engineering projects.
✔️ Stud Height: 20mm
✔️ Roll Size: 40m²
✔️ Waterproof & Vapour-Proof
✔️ System Type: Type C (BS 8102:2009 compliant)
Key Features
-
✅ High Drainage Capacity – 20mm studs create large cavities to accommodate heavy water ingress
-
✅ Waterproof & Vapour-Proof Barrier – Protects floors from moisture and groundwater
-
✅ BS 8102:2009 Compliant – Part of a Type C Drained Protection System
-
✅ Reversible & Non-Invasive – Ideal for use in listed or heritage buildings
-
✅ Vibration Tolerant – Suitable for areas subject to movement or ground vibration
-
✅ Large Roll Format – 40m² per roll for cost-effective coverage in large areas
Typical Applications
-
Basement and cellar floor waterproofing – new-build or retrofit
-
Tunnels and civil engineering structures – where high drainage performance is needed
-
Listed buildings – offering a reversible damp-proofing solution
-
Floor slabs prone to water ingress or rising damp
-
Substrates exposed to long-term moisture or affected by groundwater pressure
Installation Guidance
-
Stud side must face the floor to create the drainage void
-
Typically installed horizontally, but can be used vertically where needed
-
Joints and overlaps are sealed using Delta Tape and Delta Corner Strip to ensure a watertight system
-
Can be integrated with Delta sump and pump systems for active water management
Delta MS20 provides robust, long-term protection for basement floors, especially in areas subject to heavy water loads. With its exceptional drainage capacity and flexible application, it’s trusted across residential, commercial, and infrastructure waterproofing projects.
